Marathon Petroleum Corporation
MX ˙ BMV ˙ US56585A1025
SecurityMX:MPC / Marathon Petroleum Corporation
InstitutionMarathon Capital Management
Latest Disclosed Ownership1,700 shares
Latest Disclosed Value $ 415,106
Marathon Capital Management ownership in MPC / Marathon Petroleum Corporation

On May 14, 2026 - Marathon Capital Management filed a 13F-HR form disclosing ownership of 1,700 shares of Marathon Petroleum Corporation (MX:MPC) valued at $415,106 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 29, 2026 disclosing 1,700 shares of Marathon Petroleum Corporation. This represents a change in shares of 0.00% during the quarter.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

Upgrade to unlock premium data and export to Excel .

Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-14 2026-03-31 13F MARATHON PETE COM 56585A102 1,700 0 0.00 415 50.36 0.0932
2026-01-29 2025-12-31 13F MARATHON PETE COM 56585A102 1,700 0 0.00 276 -15.60 0.0595
2025-11-14 2025-09-30 13F MARATHON PETE COM 56585A102 1,700 0 0.00 328 15.96 0.0750
2025-08-14 2025-06-30 13F MARATHON PETE COM 56585A102 1,700 0 0.00 282 14.17 0.0719
2025-05-15 2025-03-31 13F MARATHON PETE COM 56585A102 1,700 0 0.00 248 4.22 0.0660
2025-02-14 2024-12-31 13F MARATHON PETE COM 56585A102 1,700 0 0.00 237 -14.13 0.0592
2024-11-14 2024-09-30 13F MARATHON PETE COM 56585A102 1,700 0 0.00 277 -6.12 0.0671
2024-08-14 2024-06-30 13F MARATHON PETE COM 56585A102 1,700 0 0.00 295 -14.04 0.0752
2024-05-15 2024-03-31 13F MARATHON PETE COM 56585A102 1,700 -300 -15.00 343 15.54 0.0817
2024-02-14 2023-12-31 13F/A-1 MARATHON PETE COM 56585A102 2,000 0 0.00 297 -1.99 0.0746
2024-02-08 2023-12-31 13F MARATHON PETE COM 56585A102 2,000 0 297 0.0746
2023-11-14 2023-09-30 13F MARATHON PETE COM 56585A102 2,000 -100 -4.76 303 23.77 0.0762
2023-08-15 2023-06-30 13F/A-1 MARATHON PETE COM 56585A102 2,100 100 5.00 245 -9.29 0.0604
2023-08-14 2023-06-30 13F MARATHON PETE COM 56585A102 2,100 100 245 0.0593
2023-05-12 2023-03-31 13F MARATHON PETE COM 56585A102 2,000 -13,750 -87.30 270 -85.32 0.0664
2023-02-14 2022-12-31 13F MARATHON PETE COM 56585A102 15,750 -350 -2.17 1,833 14.63 0.5053
2022-11-14 2022-09-30 13F Marathon Pete COM 56585A102 16,100 -320 -1.95 1,599 18.44 0.4568
2022-08-12 2022-06-30 13F Marathon Pete COM 56585A102 16,420 -4,505 -21.53 1,350 -24.54 0.4361
2022-05-13 2022-03-31 13F Marathon Pete COM 56585A102 20,925 -2,070 -9.00 1,789 21.62 0.5135
2022-02-09 2021-12-31 13F Marathon Pete COM 56585A102 22,995 -9,200 -28.58 1,471 -26.08 0.3447
2021-11-15 2021-09-30 13F Marathon Pete COM 56585A102 32,195 -1,023 -3.08 1,990 -0.85 0.4518
2021-08-16 2021-06-30 13F Marathon Pete COM 56585A102 33,218 -200 -0.60 2,007 12.31 0.4646
2021-05-14 2021-03-31 13F Marathon Pete COM 56585A102 33,418 -2,885 -7.95 1,787 19.05 0.4711
2021-02-08 2020-12-31 13F Marathon Pete COM 56585A102 36,303 6,395 21.38 1,501 71.15 0.4424
2020-11-16 2020-09-30 13F Marathon Pete COM 56585A102 29,908 -1,642 -5.20 877 -25.61 0.3192
2020-08-14 2020-06-30 13F Marathon Pete COM 56585A102 31,550 -83 -0.26 1,179 57.83 0.4529
2020-05-15 2020-03-31 13F Marathon Pete COM 56585A102 31,633 1,500 4.98 747 -58.84 0.3430
2020-02-14 2019-12-31 13F Marathon Pete COM 56585A102 30,133 20,382 209.02 1,815 206.59 0.6172
2019-11-13 2019-09-30 13F Marathon Pete COM 56585A102 9,751 175 1.83 592 10.65 0.2388
2019-07-25 2019-06-30 13F Marathon Pete COM 56585A102 9,576 1,850 23.95 535 15.80 0.2182
2019-05-15 2019-03-31 13F Marathon Pete COM 56585A102 7,726 925 13.60 462 15.21 0.2063
2019-02-07 2018-12-31 13F Marathon Pete COM 56585A102 6,801 -3,833 -36.04 401 1.52 0.1990
2016-05-13 2016-03-31 13F Marathon Pete EQ 56585A102 10,634 19 0.18 395 -28.18 0.2044
2016-02-12 2015-12-31 13F Marathon Pete EQ 56585A102 10,615 13 0.12 550 12.02 0.2912
2015-11-12 2015-09-30 13F Marathon Pete COM 56585A102 10,602 -305 -2.80 491 -14.01 0.2493
2015-08-11 2015-06-30 13F Marathon Pete COM 56585A102 10,907 5,426 99.00 571 1.78 0.2633
2015-05-06 2015-03-31 13F Marathon Pete COM 56585A102 5,481 5 0.09 561 13.56 0.2487
2015-02-09 2014-12-31 13F Marathon Pete COM 56585A102 5,476 -104 -1.86 494 4.66 0.4552
2014-10-30 2014-09-30 13F Marathon Pete COM 56585A102 5,580 6 0.11 472 8.51 0.4253
2014-08-08 2014-06-30 13F Marathon Pete COM 56585A102 5,574 -105 -1.85 435 -11.94 0.3499
2014-04-30 2014-03-31 13F Marathon Pete COM 56585A102 5,679 -105 -1.82 494 -6.97 0.3712
2014-01-28 2013-12-31 13F Marathon Pete COM 56585A102 5,784 4 0.07 531 42.74 0.3830
2013-11-04 2013-09-30 13F Marathon Pete COM 56585A102 5,780 7 0.12 372 -9.27 0.3195
2013-07-25 2013-06-30 13F Marathon Pete COM 56585A102 5,773 5,773 410 0.3499
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.